My cat kitty , is six months old . For the past four days has been throwing up and will only sip water . He cryes out when you pick him up or touch him anywhere around his stomache . At this moment we don't have much money and we are living in a shelter.
Can you give us any information about what we can do, or where we can go for care at minimum cost?

Some cities have their own clinics to spay and neuter cats at a discounted rate, and your cat is at the right age, they will give your cat a exam at that time and hopefully can tell you what's up with him. I would make an appointment ASAP.